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A study of more than 3,000 circumcised men in South Africa was done by the French agency for Aids and Viral Hepatitis. The data, outlined at a conference in Brazil, suggests circumcision could be effective in preventing the spread of HIV among men and shows male circumcision prevented about seven of 10 infections.UN health agencies have cautioned that more trials are necessary before they will recommend this as a method to protect against AIDS. To have a full conclusion, further trials are being carried out in Uganda and Kenya to measure the effect of circumcision on other populations.

Since its launch in 1998, Viagra, the world's first treatment for impotency, has revolutionized life for men of a certain age: more than 23 million worldwide have used the blue, diamond- Starting to Spring of 2005 American health officials are examining reports that it causes blindness among a small number of at-risk men. The Viagra blindness risk was also reported in March 2005 in the Journal of Neuro-Ophthalmology. The journal study examined seven cases where men suffered an unusual form of sudden blindness within 36 hours of taking Viagra.Pfizer spokesperson Daniel Watts said there is no proof that Viagra caused the blindness. He said that men who take Viagra often have high blood pressure and high cholesterol, which are also associated with the conditions that can causes blindness. This form of sudden blindness is caused by the blockage of blood flow to the optic nerve and is most common in older people, who disproportionately use Viagra.